Two-wheeled vehicle



(No Model.)

R. F. BRIGGS.

v 7 TWO WHBELED VEHICLE, No. 279,531. Patented June 19,1883.

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UNITED STATES 1 PATEN ()FFICE.

RIoIIARnF. BRIGGS, or SALISBURY, MASSACHUSETTS.

TWO-WHEELED VEHICLE.

. SPECIFICATION forming part of Letters Patent No. 279,531, dated June 19, 1883.

l Application filed April 19,1883. (No model.)

To all whom it may concern: J

Be it known that I, RICHARD F. BRIGGS, of Salisbury, in the county of Essex and State of Massachusetts, have invented a new and useful Improvement in Two-\Vheeled Vehicles, which will, in connection with the ac companying drawings, be hereinafter fully described, and specifically defined in the appended claims.

This invention relates to twoqvheeled vehicles and it consists in the construction and combination of the divers devices embodied therein, as hereinafter more particularly and fully set forth and claimed.

In said drawings, Figure 1 is aside elevation of a vehicle embodying my invention, the axle being shown in transverse section, the wheel being indicated by a dotted line, and the front portion of the shafts being broken away for want of room. Fig. 2 is a top or plan View, showing the rear portion of the right-hand or off Shaft, a portion of the axle, and the right-hand spring, the body and off wheel being indicated by dotted lines. Fig. 3 is a detached side elevation, showing theaxle in transverse section, the buffer-block, the buffers, the shattshackle, and a section of the shaft. Fig. 4 is a vertical section taken in the line of the axis of the shaft, and showing the same parts as in Fig. 3. Fig. 5 is a Vertical section, taken as on line A, Figs. 1 to 4, and showing the same parts as in Figs. 3, 4, except the buffers. Fig. 6 is a front or rearelevation of the stirrup by which the rear ends of the springs and body are connected.

In said views, av represents the body, I) the axle, and c the' springs, the latter being one of the well -known forms of semi elliptic springs, and are secured to. the axle, at their center, by being bolted to lugs formed upon the axle, as shown, or by any of the other well-known means, and being secured to the axle at such distance apart that each spring will be directly beneath. a side sill'of body a. when the latter is in position thereon. The

front of the body is pivotally connected with the springs by means of bows (I, which are bolted to the side sills of the body, a link, 0, connecting said bow and springin the wellknown manner. The rear ends of sai d springs are connected with the body by means of stir- V rup f, the shank of which passes up through the side sill, and is therein rigidly secured by a screw-nut, both above and below the sill, which nuts are threaded on said shank, as shown, the eye of the spring being secured between the forks of the stirrup by the pivotbolt 9, as shown. Vhatever change in the length of the spring may result from its deflection bybeing loaded is compensated for by the pivotal "link 6, by which its front end is connected with bows d. A buffer-block, m, is secured to axle I), upon either side, at the proper points fdr shafts h, and upon said block is se cured, as shown, a shackle, 1', between the ears whereof the shaft 71. is secured by the pivotbolt j, and upon either side of said shackle i a buffer of elastic rubber, or spring, 7:, is inter posed between block on and shaft 71, said buffers being secured in position by a small bolt or rod passing through the shaft, buffer, and rod, as shown. By means of the vertical adjustability of one end of the body relatively to its supportingspring, 'as by stirrup f, the

proper level of the body may be attained when horses of different heights are at different times used in the same carriage; and by means of the pivotal connection of the shafts with the axle, independent of the body and its springs, and by arranging buffers 7. upon either side of the shaft, upon a rigid bed or block, 111, secured to axle l), the slight vertical motion that is imparted to the shaft by the stepping of the horse is absorbed by said buffers, thereby allowing the inertia of the body and its load to hold the same continuously level, undisturbed by the motion of the horse, while the resistance of buffers k prevents undue rocking of the carriage.

It will be obvious that the devices by which theheight ofthe body relatively to the supporti ng-sprin g at one end is varied can be arranged at either the rear or front end of the body, as desired *and instead of the rubber buffers I: coiled springs or a flat spring may be arranged between block m and shaft h to accomplish the same result. A packing, I, of anti;friction or cushioning material is shown as inserted in shaft 72 to serve as the. bearing for the pivot boltj to prevent wear and rattling.

I claim my invention axle b, and shafts 71,- pivotally connected with 1. I11 a two-wheeled Vehicle, the 'coinbinathe axle and with bnffersk, arranged upon tion of axle b and shafts h, pivotally e011- either side of said pivot, and seated upon anected thereto, and a buffer arranged upon support rigidly secured to the axle,- all sub- 5 each side of the pivot of the shafts, upon supstantially as specified.

ports secured to the axle, whereby the axle A r and shafts are held in relative position, but RICHARD BRIGGS With a slight yielding motion, substantially as \Vitne'sses: specified. GEo. WV. GATE,

1o 2. The combination of body a, springs a, JOHN ONEIL. 

